SAE 20W40 type SE motor oil for > 40deg F SAE 10W30 type SE motor oil for < 60deg F
Yes you can.
SAE 10W30 or yamalube 10w30
SAE 10W30
SAE 10w30 oil.
The weight of the oil when it is cold. The 15w is a thicker oil than the 10w when it is cold.
SAE 10w30
SAE 10w30
10w30
SAE 10w30
SAE 10w30
SAE 10w30